Servicio Nacional de Geología y Minería (National Geology and Mining Service), abbreviated as SERNAGEOMIN, is a Chilean government agency. Its function is to provide geological information and advice, technical assistance to government, public and private interests, and to regulate the mining industry in Chile.
It was formed in 1980 by the combination of the previous Institute of Geological Investigations and the State Mines Service. Its National Director is appointed by the President of Chile; its present National Director (since 2016) is Mario Eduardo Pereira Arredondo.
SERNAGEOMIN publishes since 1974 the scientific journal Andean Geology, which was until 2009 named Revista Geológica de Chile.